#include "drv_usart.h"
void drv_usart6_init(void)
{
	GPIO_InitTypeDef GPIO_InitStruct;
	USART_InitTypeDef USART_InitStruct;
	
	RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOG, ENABLE);
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART6, ENABLE);
	
	GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF;//复用模式
	GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
	GPIO_InitStruct.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_14;
	GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP;
	GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init(GPIOG, & GPIO_InitStruct);

	GPIO_PinAFConfig(GPIOG, GPIO_PinSource9, GPIO_AF_USART6);
	GPIO_PinAFConfig(GPIOG, GPIO_PinSource14, GPIO_AF_USART6);
	
	USART_InitStruct.USART_BaudRate = 9600;
	USART_InitStruct.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
	USART_InitStruct.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
	USART_InitStruct.USART_Parity = USART_Parity_No;//
	USART_InitStruct.USART_StopBits = USART_StopBits_1;
	USART_InitStruct.USART_WordLength = USART_WordLength_8b;
	USART_Init(USART6, &USART_InitStruct);
	USART_ClearFlag(USART6, USART_FLAG_TC);
	USART_Cmd(USART6, ENABLE);
}
int fputc(int ch,FILE *f)//重构fputc函数
{
	USART_SendData(USART6, ch);
	while(USART_GetFlagStatus(USART6, USART_FLAG_TC) == RESET);//判断数据是否发送完
	USART_ClearFlag(USART6, USART_FLAG_TC);//Clears the USARTx's pending flags
	return ch;
}
